Java Program to Find maximum element with Explanation

Java Easy Arrays 23 views

1 min read 169 words

This problem helps you practice core Java fundamentals in a practical way. It builds intuition around maximum, non-empty, element. Let’s break it down step by step so you can implement it confidently.

Back to Questions

Previous Check array sorted (non-decreasing) Easy P Next Sum of array elements Easy N

Problem Statement

Task: return the maximum value from a non-empty array.

Input Format

An integer n (size of array, non-empty)
Then n integers (array elements)

Output Format

The maximum value from the array.

Constraints

• n ≥ 1

• Array is non-empty

• Integer values

Concept Explanation

To find the maximum value, we keep one variable and update it
whenever we see a bigger number while scanning the array once.

Step-by-Step Logic

1.Read array size n.

2.Read n elements into the array.

3.Set max = arr[0].

4.Loop from index 1 to n-1.

5.If arr[i] > max, update max = arr[i].

6.After loop ends, max holds the largest value.

7.Print max.

Code Solution

This explanation is written for learning purposes and to help beginners understand the concept clearly.

static int maxElement(int[] a){int m=a[0];for(int i=1;i<a.length;i++) if(a[i]>m) m=a[i];return m;}

Output Example

Input:

5 3 7 2 9 4

Output:

Common Mistakes

- Misreading input/output format.
- Not handling constraints and edge cases.
- Off-by-one errors in loops.
- Forgetting to reset variables between test cases (if any).

MeetCode